Collapsible window-screen.



E. T. BuRnowE's. COLLAPSIBLE WINDOW SCREEN.

APPLICATION FILED IUNE 24.1915.

Patented Jan. 9,1917.

@W l X v .o vwl @f I a 5 4 ,W 3 H a j* w J o .r/ Im @L w 7%/ r N ums mnsmmunmumo.. instalaron. n. c

EDWARD T. BURROWES, OF PORTLAND, MAINE.

conLArsIBLE WINDOW-SCREEN.

Specification of Letters Patent. Patented Jan. 9, 191'?.

Application filed June 24, 1915. Serial No. 36,089.

To all uwm t may concern Beit known that I, EDWARD T. Bunnowns, acitizen of the United States, residing at Portland7 in the county ofCumberland and State of Maine, have invented certain new and usefulImprovements in Collapsible lVindow-Screens, of which the following is aspecilication.

This invention relates to collapsible win-V dow screens of the generaltype shown in my prior applications, Serial No. 1310, iiled Jan. 9,1915; Serial No. 2841, filed Jan. 18, 1915, and Serial No. 30,364, filedMay 25, 1915. Thile such former applications relate to half-lengthscreens, and means for supporting the same from the upper sash, thepresent invention contemplates the pro'- vision of improved means forsupporting such screen independent of the sash, and also provision of a`full length screen having improved mea-ns for supportingl the same.

In order that the invention may be clearly understood, reference is hadto the accomu panying drawings, forming part ofA this specification, andin which,

Figure 1 is a sectional perspective view of the outside of a window,showing my improved full length screen applied thereto; Fig. 2 is'anenlarged fragmentary section through the upper part of such a windowshowing the means for supporting the top bar of the screen; Fig. 3 is ahorizontal section on an enlarged scale, substantially on the line 3--3of Fig. 1; Fig. 4 is a. vertical section through a window showing onemethod of supporting al half-length screen independent of the sash; Fig.5 is a fragmentary elevation of the supporting means shown in Fig. 4;and, Fig. 6 is a fraOinentary, enlarged, vertical section through themeeting rails of the two sashes, showing a different means forsupporting a half-length screen.

Referring to the drawings in detail, 1 designates the window frame, 2the lintel or outside trim, 3 the parting bead, 4 the blind stop, 5 thesill, and 6 and 7 the upper and lower sashes, respectively, all of whichparts may be of the usual or any desired construction.

8 designates the runway in which the upper sash moves, and 9 indicatesthe screen material which, as in my prior applications above referredto, may consist of specially treated fibrous netting. Y

IThe upper bar in the present case is preferably of the shape shown inFig. 2,-being substantially rectangular in cross section and having itsupper edge somewhat-thinned. One end of the netting 9 is secured to theoutside face of the bar 10,-as by means of a key or spline 10, in theusual manner. The lower end of the netting 9 is secured to and adaptedto be wound around a bar or vroller 11, preferably circular in crosssection. The bar 11 is adapted to rest on the sill 5 and may be held inposition thereon by any of the severa-l means shown in my formerapplications. The ends of the bar are capable of sliding freely intherunway 8, as shown in Fig. 3. Y l

12 designates the inner bead and 13 a strip which is secured to the edgeof the blind stop 4 by means of nails 14. It will be noted thatthisstrip 13 extends the full length'of the window frame, and that at itsupper portion its outer edge is flush with the outer edge of the blindstop 4, as vclearly shown in Fig. 3. By reference to Fig. 4, it will beseen that the strip isY substantially straight from the top downward toa point opposite the meeting rails of the sashes, and from this point itis inclined inwardly until its lower end is flush withV the inside ofthe blind stop as shown. v The purpose of thus bringing in the lower endof the strip 13 isy to cause the edge ofthe netting 9, at the lower partof the screen, to lie snugly thereagainst, and this is necessary sincethe netting is secured to the bar 11 which lies in the runway 8. y

The upper end of the strip 13 is spaced as far outwardly as possible forthe purpose of accommodating, between itself and the upper sash 6, thesupporting means for the top bar 10 of the screen. The supporting meanspreferably consists of af plurality of resilient sheet meta-l clips 15,the number used depending upon the width of the window. Each ofA theseclips has a flat middle portion which is secured to the trim or lintel2, by means of a screw 16, or the like, and a pair of spaced arms, theouter arm 17 being the shorter. Such arm 17 is provided with anoutwardly turned lower end. The other arm 18 is longer than the 'arm 17and extends substantially straight down parallel with the edge of theblind stop, to a point somewhat below the end of arm 17. At lits lowerend the arm 18 is provided with a retaining lug 19, preferably formed bybending the end of the arm so as to produce Ia hump. It will beunderstood that the space between the lug 19 and the end of the arm 17is suiicient to permit the bar 10 being inserted edgewise into the clipand then slightly turned so that its lower edge rests upon and issupported by the lug 19. IThe thinned upper edge of the bar 10facilitates its being inserted into the clips, and thc resilientpressure of the arm 17 serves to maintain the bar in snug contact withthe arm 18 and lug 19. lt will be further seen that the arm 18 is backedby the sash 6 and therefore cannot yield.

ln the construction above described it will be observed that thesupporting` means for the screen is wholly independent of either sash,and that either or both sashes may be raised or lowered as desiredwithout interfering with the screen, and without leaving any openingthrough which insects may enter.

In Fig. 4, l have shown means by which a screen of this type may besupported at half-length. In this case the surplus netting is simplywound upon the bar 11. The bar 10 is of such thickness as to snugly fitbetween the sash 6 and the strip 13, as in the case of the full lengthscreen, and this bar may be conveniently supported by means of a pair ofsemi-elliptic springs 20, secured to the window frame on each side andadapted to frictionally engage the ends of the bar 10. The springs 20are secured to the window frame by means of nails or screws 21, suchfastening devices being applied to one end only of the springs, theother end remaining free. These springs may be quite similar to thoseshownv in my prior application Serial No. 2841, above referred to, butare supported by the window frame instead of by the sash. ln thearrangement of Fig. 4, also, it will be noted that the screen supportingmeans is entirely independent of either sash.

ln Fig. 6, l have shown the upper bar 10 supported from the sash 6 bymeans of a device similar to that shown in my application Serial No.30,364, above referred to. rlhis device consists of a hook comprising ascrew shank 22 and an arm 23, extending at right angles thereto. Two ormore such hooks are screwed 'into the bottom of sash 6 to the desiredextent, and the arms 23 thereof turned so as to engage under the bar 10and support the same, as will be obvious. In this case,

also, the bar 10 snugly lls the space between the strip 13 and sash 6 soas to make a tight joint.

l/Vhat l claim iS:

1. rEhe combination with a window frame having the usual sash, of astrip secured to a vertical face of the frame, a flexible screen, and abar to which one end of said screen is secured mounted horizontally withits ends in and snugly fitting the space between such sash and strip,the side edges of said screen resting against the face of said strip.

2. The combination with a window frame having the usual sash, of a stripsecured to a vertical face of the frame, a bar having its ends mountedin the space between said sash and strip, and a piece of flexiblenetting secured. to the outer face of said bar and having its edges incontact with said strip.

3. The combination with a window frame having the usual runway, and asash in said runway, of a strip secured to a vertical portion of saidframe and having its inside face at its upper end spaced from saidrunway, and at its lower end iiush with the edge of said runway, aflexible screen having its edge in substantial contact with said strip,and a bar to which said screen is secured, the end of said bar lying insaid runway.

4. rlhe combination with a window frame having the usual sill, sashguides and sash, of a flexible screen, top and bottom bars to which saidscreen is secured, said bottom bar being in contact with the sill andsaid top bar being disposed between the two outside sash guides, andmeans carried by said guides for frictionally engaging the ends of saidtop bar for supporting the same.

5. The combination with a window frame having the usual outside trimincluding lintel and sash guides, of a plurality of spring clips securedthereto, each clip having a pair of downwardly extending arms, one ofsaid arms being straight and provided at its end with a projection, saidstraight arm lying in the plane of the inner edge of the sash guide, abar detachably held between `the arms of said clips with its inner faceadjacent the sash and its lower edge resting against said projection,and a flexible screen secured to said bar.

.ln testimony whereof I have aiiixed my signature.

EDWARD T. BURROWES.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents.

Washington, D. C

